Zabbix

.......PS. [ZBXNEXT-6879] added rate() integration tests

* commit '3362983e1961c0ce9730b91cb324ad1b956c7c55':
  .......PS. [ZBXNEXT-6879] removed serverConfigurationProvider
  .......PS. [ZBXNEXT-6879] added negative tests
  .......PS. [ZBXNEXT-6879] added rate() integration tests